PLASMON ENHANCED ELECTRON AND ATOM EMISSION FROM A SPHERICAL SODIUM CLUSTER - NA-91(-)

Authors
REINERS T HABERLAND H
Citation
T. Reiners et H. Haberland, PLASMON ENHANCED ELECTRON AND ATOM EMISSION FROM A SPHERICAL SODIUM CLUSTER - NA-91(-), Physical review letters, 77(12), 1996, pp. 2440-2443
Citations number
29
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
77
Issue
12
Year of publication
1996
Pages
2440 - 2443
Database
ISI
SICI code
0031-9007(1996)77:12<2440:PEEAAE>2.0.ZU;2-7
Abstract
The photoabsorption cross section of the negatively charged, spherical Na-91(-) cluster shows a broad collective resonance at h omega = 1.65 eV, the decay of which can lead to two final channels: atom and elect ron emission. The branching ratio between the two channels was measure d to increase linearly with photon energy over the unexpectedly broad energy range of 1.2 eV, which is attributed to the cluster's incipient valence band width. The femtosecond time scales of the processes invo lved are discussed.